I love the motor sounds of the train, they are awesome. However, the acceleration rate of this train is too unbelievable. The train accelerates way too fast thus making it unrealistic even for a fictional train and the deceleration is even worse. There is no train on earth that slows down that fast. If you can fix the acceration and deceleration on this train, you'll get an A+ from me because other than that, this train is awesome!!!!!
P.S.- Not knocking on you or your work. I'm just responding to your request for improving your train.